Catch-basin cover.



.0. A. J0HNS0N*& A. L.- MILLS. ATH BASIN COVER. A'PPLIATON FILED JAN. 20, 1909. Patented Apr. 20, 1909.`

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` G. A. JOHNSON a A. LQMILLS.

OATOH BASIN COVER. APPLIATION FII-.ED JAN. 20. 1909.

Patented A131120, 1909.

'Y INVENTORS. Charles A Johnscn Alfred mms BY :ItwA/r WW ATTYS.

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CHARLES A. JOHNSON AND ALFRED L. MILLS, OF NORTH RIDGEVILLE, OHIO.

CATCH-BASIN COVER.V

Specification of Letters Patent.

Patented April 20, 1909.

Application filed .'anuary20, 1909. Serial No. 473,344.

ers, and the invention consists in the con struction and combination of parts, sub stantially as shown and described and particularly pointed out in the claims.

ln the accompanying drawings, Figurey 1 is a cross sectional plan of thebasin mech-V anism on a line corresponding to s-fz, Fig. 2. Fig. 2 is a side elevation of said mechanism, and Fig. 3 is a vertical cross section thereof on line to-ao, Fig. Y4. Fig. 4 isa plan view of the front portion of the` said mechanism, and a cross section of the rear lortion corresponding to line fJ-y, Fig. 8. Fig. 5 is an end elevation of a portion thereof on a line corresponding. substans tially to 6 6, Fig. 5. elevation of a part of the curb member on line 6-6, Fig. 5. Fig. 7 is a perspective view of one of the fastening bolts and heads for the said curb section, and Fig. 8 is cross sectional elevation on line rl-fe', Fig. 4. The parts as thus shown and described make up a complete catch basin mechanism or cover for the basin adapted to both the basin and the curbingof a street more or less after the manner of such mechanism usually. To these ends the cover proper for the basin, indicated by C, has the usual liat base or flange portion c, adapted to lie flat upon the top of the catch basin, anda rectangular or box shaped wall 2 con-` structed to support the added parts and Which go to make up a complete structure, substantially as shown. To these ends the front portion of said rectangular part or box is provided with lugs 3, or their equivalent,

on the inside adapted to sup ort the grate.

G which rests thereon and W ich is locked in place by bolt a having an underlying lip b. The top of the @rate is flush With the top of the Wall 2 of said cover, as usual, and resumably Hush With the paved surface o the street.

D represents the curb member, Which is a separate part entirely and adapted to lit Within the angles of the box portion 2 of the cover and to be slidably mounted therein to Fig. 6 is a sectional accommodate the same to the depth or elevation of the curbing as the same may be found here and there in different streets. The adjustment herein provided. for is vertical, and the fastenings for said curb member are wholly on the inside. To these ends the said curb member has plain iiat surfaced ends and rear corresponding to the shape and size of box 2 and fitting slidably but snugly therein so as to be held 'firmly betWe'enfthe Walls thereof and thus contribute to its own support. The fastening means, however, are necessary to `fix the said member at any given elevation, and to these ends l construct the box 2 with vertical grooves or channels 4 undercut along their edges in `dovetail fashion, open along the inside of the box and covered over their outside and adapted to receive the oppositely or reversely dovetailed ribs 5 on the curb member and the heads 6 of the fastening bolts 7. Curb member D is provided with recesses Q in its ribs 5 and holes d in said recesses adapted to receive the said bolts, which necessarily are inserted before the said member' is put in place, and the heads of said bolts are dove tailed or beveled with a decided flare to correspond With the ribs 5 and to enter the channels 4 in the said box with said ribs and frictionally lock therein, thus holding the said member D fast. Said ribs have recesses or notches 9 adapted to receive ,the said heads. Then as said member is introduced and set at the desired level the nuts S are tightened and the beveled heads 6 engage the beveled surfaces of said channels and locli the said part firmly in lace. The rear channel or groove 4 is lire the corres aonding grooves at the ends, as is also the boit 7 and its head 6, but no beveled rib like 5 is needed at the rear. A pair of vertically disposed overilow guards, shown as plain bars l2, have eyes or holes in their upper ends and are secured therethrough by bolts 14 upon the inside of the top cross portion of the said curb member. Otherwise the said guards 12 are slidably mounted 'in keepers 15 cast in the rear edge of the grate, and two or more such bars or their equivalent may be used.

The grate G is recessed or cut out in its rear corners to engage under the lugs 17 on the box 2, which enter into said recesses flush with the top of the grate, so that the grate is first inserted between these lugs and the supporting lugs 3 beneath and then a single fastening bolt a and catch l) on the same at the center and front of the grate l serves to hold the grate securely down in place.

Practically the device is made up of three pieces, the cover C, the curb member D and the grate G, bars 12 being guards adapted to detain such objects that might impede or obstruct the down passage into the basin.

By constructing the curb member with the dovetailed guide ribs and forming the corresponding channels l in the box 2 we obtain not only a rigid construction of the parts but also a blind connection so far as the outside is concerned, there being no holes or bolts or the like exposed outside of the structure to make the connection and adjustment of said curb member. Again, the ribs and channels combined alone serve to keep the curb member in perfect alinement and to prevent displacement forward or backward under any possible strain short of breakage, and hence the strain does not come on bolts 7 but on said ribs, and the bolts serve to retain the curb member in any adjusted position. 1For this reason, also, the rear of said member does not require a rib, but the bevel headed boltalone is sufficient. Shoulders 2() on the sides of the curb member are adapted to rest down on the edge of box 2 and prevent it from sliding down below or lower than said shoulders.

lt will be noticed that box 2 has swells or enlargements 22 within which the channels i are formed, and there is a fairly close lit between the ribs 5 and said channels for the purposes above set forth,

The box 2 of the base C is open across its entire bottom so as to have a free and open discharge into the basin without possible obstruction.

The recesses 9 are near the bottom edge of the curb member so as to keep the bolts 6 always within the adjusting space, but shoulders 20 prevent the curb member from going too low to lock the bolts in the cover, and lugs 17 from shoulders at the front against which the curb member may come if the dovetailed connections are loose enough to allow this to occur. The said curb member itself is box shaped and wholly closed over its top sides and rear, and open iront and bottom.

That we claim is:

l. In catch basins, a base having a rectangular box shaped top portion with parallel walls and open across its entire bottom, said walls being provided with Haring channels at its sides and rear extending the full depth thereof, in combination with a curb member having dovetailed ribs conforming to said channels and. slidable therein, and boltsA having heads conforming in shape to said ribs and adapted to engage and lock against said flaring channels and 'lix said curb member in place.

2. In catch basins, a base having a box shaped vertical portion open. across its top and bottom and provided with dovetailed channels inside at its sides and rea in combination with a curb member having doretailed ribs engaged in said channels and provided each with a recess and a bolt hole in said recess, and bolts engaged in said holes having heads seated in said recesses and constructed to frictionally engage said dovetailed channels and iix said curb member at any desired elevation.

3. In catch basins, a cover having a reetangular vertical wall provided with dovetailed channels inside at its rear and lugs inside at its front, in combination with a grate supported on said lugs and having keepers in its rear edge, a curb member adjustably engaged in said channels and guard pieces fixed at one end in the front and top ol said curb member and slidably mounted in said keepers.

el. In catch basins, a cover having vertical channels in its sides and rear, in combination with a curb member having ribs engaged in said channels respectively, and bolts through said curb member adapted to lock the same in adjusted position in said cover.

In testimony whereof we allix our signatures in presence of two witnesses.

CHARLES A. JO'INSON. ALFRED L. MILLS. lilitnesses E. M. Fisnnn., F. C. MUssUN. 

